CN101832747A

CN101832747A - Concave and convex defect detection tool on laminate surface of solar cell module

Info

Publication number: CN101832747A
Application number: CN201010156559A
Authority: CN
Inventors: 姜妍
Original assignee: Changzhou EGing Photovoltaic Technology Co Ltd
Current assignee: Changzhou EGing Photovoltaic Technology Co Ltd
Priority date: 2010-04-27
Filing date: 2010-04-27
Publication date: 2010-09-15

Abstract

The invention discloses a concave and convex defect detection tool on laminate surface of a solar cell module. The detection tool comprises a calibrated scale, an edge-folded measuring rod and a slider. A linear sliding rail and a dimension scale are formed on the scale body of the calibrated scale; a stand end is arranged at the lower end of the calibrated scale; the sectional area of the stand end is 1/8 to 1/2 of that of the calibrated scale; the slider is arranged inside the linear sliding rail; the edge-folded measuring rod is fixed on the slider; the distance from a measuring probe to the calibrated scale is 1 to 5 times the width of the calibrated scale; and the dimension scale is marked on upper and lower sides of the zero graduation line of the calibrated scale. Because the area of the stand end is small, namely the contact area of the stand end with the laminate surface is small, the interference of convex points near the point to be detected on the measured result is avoided; the height of the convex points and the depth of pits are accurately measured by the detection tool; and the defect to be detected can be quantified. Therefore, the evaluation criterion is more objective and real.

Description

Laminate surface concave, convex defect detection tool in the solar module

Technical field:

The present invention relates to a kind of testing tool of solar photovoltaic assembly, relate in particular in the solar photovoltaic assembly production run laminate surface concave, convex defect detection tool in the solar module.

Background technology:

Solar battery product obtains using in all conglomeraties because of advantages such as energy-saving and environmental protection, long service life.The design service life of this series products is 25 years, guarantee that product reaches the term of life of length like this, just needs the quality of strict control solar module.In solar module, backboard plays a part the cell silicon chip in the protective seam casting die.In the production run of solar module, might leave sags and crests on the notacoria, if during the size value of being above standard in protruding point or depression hole, not only can influence the serviceable life of solar cell, and directly have influence on the safety in utilization of solar cell.Cause the reason that has protruding point or depression hole on the notacoria a lot, for example: thus there is during lamination dust impurity to enter, high temperature makes micro-bubble in the assembly become big to assemble and with notacoria jack-up, EVA shrinkage factor problem, operation causes confluxing before the lamination that band has bent etc. and can make and produces the protruding point on the notacoria to battery strings when solidifying; EVA glue, the backboard depression hole that all can occur on the battery layers part back side such as too thin is arranged on high temperature cloth or loam cake silica gel plate.In checking process, aim at the protruding point with finger and press downwards, if being soft then explanation, the protruding point causes that by bubble this defective can not come into the market, must be judged to be substandard product; If the protruding point is hard, then explanation is to be sandwiched causedly by material object, and specified altitude can let pass as long as the height of protruding point is no more than; When there being when hole depression, and during the degree of depth value of being above standard in depression hole, also by inspection.

At present, usually adopt vernier height gauge to measure for the inspection of protruding point height dimension, as shown in Figure 1, used vernier height gauge is made up of base 1, rule 2, chi frame 3, measuring jaw 4 and trip bolt 5, and rule 2 is fixedly connected on the base 1, and measuring jaw 4 is fixed on the chi frame 3, chi frame 3 is sleeved on the rule 2, trip bolt 5 is screwed on the chi frame 3, is used to lock chi frame 3 residing position on rule 2, is convenient to operate reading of data.During measurement, earlier vernier height gauge is carried out school zero, then the base 1 of vernier height gauge is lain on the laminate 11 of solar module of examine, attachable mechanical stage frame 3 makes the top of the contact protruding point, bottom of measuring jaw 4, tighten the trip bolt 5 on the chi frame 3, read actual, measured dimension from vernier height gauge.Measuring resulting size not necessarily is exactly the height of the actual outer protruding point of protruding point, because vernier height gauge has a base 1 than large contact surface, during measurement, base 1 than large contact surface should be placed on the laminate, when having other protruding point around the protruding point to be measured, the measured size of vernier height gauge comes down to special test point and the relative height size between the protruding point around it, with this measurement data as judgment basis, very science not can be specification product with the substandard product erroneous judgement.For the inspection that has the depression hole, common employing is put into the standard steel ball and is judged that cheat if steel ball is higher than to cave in, it is qualified to illustrate, can let pass, otherwise then be judged to defective in the depression hole.In a word, existing testing tool can not accurately be measured the height of protruding point, more not the degree of depth in energy measurement depression hole.

Summary of the invention:

In order to overcome the above-mentioned shortcoming that existing survey instrument exists, the purpose of this invention is to provide laminate surface concave, convex defect detection tool in a kind of solar module, it can accurately measure the height that laminate surface has the protruding point, can accurately measure the degree of depth in depression hole again.

The technical solution adopted in the present invention is:

Laminate surface concave, convex defect detection tool in the described solar module, it is characterized in that: it comprises rule, flanging type sounding rod and slide block, on the blade of rule, have the linear slide track, side at the linear slide track is provided with size scale, base oneself upon end and be arranged on the lower end of rule, the sectional area that bases oneself upon end be rule sectional area 1/8～1/2; Slide block is installed in the linear slide track, can slide up and down within it; Flanging type sounding rod is made up of cross bar, montant and measuring sonde, connect as one vertical with montant of cross bar is " 7 " font, measuring sonde is arranged on the bottom of montant, cross bar is fixed on the slide block, horizontal range between measuring sonde and the rule is 1～5 times of rule width, when measuring sonde bottom and rule base oneself upon end when being in same plane, the upper sideline of cross bar is aimed at the zero graduation line place of rule, all indicates size scale in the both sides up and down at the zero graduation line place of rule.

Further, the measuring sonde cross sectional shape is for being with the cone-shaped of circular arc; The sectional area that bases oneself upon end be rule sectional area 1/5.

Laminate surface is recessed in this solar module, protruding defect detection tool, both can accurately measure the protruding point height that laminate surface has, the degree of depth in the depression hole that has of energy measurement laminate surface again, because the area of the lower end of rule is very little, be more convenient in protruding point to be detected or cave in cheating the other suitable position of finding, overcome the measuring error that present level vernier caliper base contact area causes greatly, even when having other protruding point around protruding point to be detected or the depression hole, accurately measure as long as find the place that is fit to base oneself upon the rule lower end just can treat check point.

Since rule to base oneself upon end area very little, the contact area that is rule and laminate surface is very little, can avoid measuring point to be checked next door to have the interference of protruding point to measurement result, can record the height of protruding point or the depth dimensions in depression hole with the present invention, can carry out quantization means to defective to be detected, make judging basis more objective, truer.

Description of drawings:

Fig. 1 is with highly swimming border kind of calliper solar components concave, convex defect point synoptic diagram;

Fig. 2 is in the synoptic diagram of zero-bit state for the present invention;

Fig. 3 is the synoptic diagram of detected state of the present invention;

Among the figure: the 1-base; The 2-rule; 21-linear slide track; The 22-size scale; 23-bases oneself upon end; 3-chi frame; The 4-measuring jaw; The 5-trip bolt; The 6-verifying bench; 7-flanging type sounding rod; The 71-cross bar; The 72-montant; The 73-measuring sonde; The 8-slide block; The 9-baffle plate; The 10-solar module; The 11-laminate.

Embodiment:

Below in conjunction with description of drawings specific embodiments of the present invention:

Laminate surface is recessed in the solar module of the present invention, protruding defect detection tool, as Fig. 2, shown in 3, it is by rule 2, flanging type sounding rod 7, slide block 8 and baffle plate 9, on the blade of rule 2, have linear slide track 21, side at linear slide track 21 is provided with size scale 22, the lower end of rule 2 is for basing oneself upon end 23, base oneself upon end 23 sectional area and be rule 2 sectional area 1/5, slide block 8 is installed in the linear slide track 21, and can slide up and down along linear slide track 21, described flanging type sounding rod 7 is by cross bar 71, montant 72 and measuring sonde 73 are formed, cross bar 71 and montant 72 vertical connecting as one, be " 7 " font, measuring sonde 73 vertically is installed in the bottom of montant 72, measuring sonde 73 cross sectional shapes are cone-shaped for the band circular arc, cross bar 71 is fixed on the slide block 8, with rule 2 in vertical state, the length of cross bar 71 is 2 times of rule 2 width, during the basing oneself upon end 23 and be in same plane of measuring sonde 73 bottoms and rule 2, the upper sideline of cross bar 71 is positioned at the zero graduation line place of rule 2, all indicates size scale 22 in the both sides up and down at the zero graduation line place of rule 2.

Concrete using method is: during measurement, earlier the present invention is carried out school zero, promptly hold 23 to be placed on verifying bench 6 basing oneself upon of rule 2 lower ends earlier, moving slider 8 makes the bottom of measuring sonde 73 contact with verifying bench 6, checks whether the upper sideline of cross bar 71 is positioned at the zero-bit of rule 2.Solar module 10 is lain on the verifying bench 6, the end 23 that bases oneself upon with rule 2 is placed on the plane that depression to be detected is cheated or the protruding point is other then, promoting slide block 8 up moves, adjust the position of flanging type sounding rod 7, make measuring sonde 73 bottoms aim at measuring point to be checked, slide block 8 is moved down, contact to the bottom of measuring sonde 73 bottoms with the depression hole, or contact with the top of protruding point, read the reading of the upper sideline place scale of cross bar 71, be the degree of depth in depression hole or the height of protruding point.

Claims

1. laminate surface concave, convex defect detection tool in the solar module, it is characterized in that: it comprises rule (2), flanging type sounding rod (7) and slide block (8), on the blade of rule (2), have linear slide track (21), side at linear slide track (21) is provided with size scale (22), base oneself upon the lower end that end (23) is arranged on rule (2), the sectional area that bases oneself upon end (23) be rule (2) sectional area 1/8～1/2; Slide block (8) is installed in the linear slide track (21), can slide up and down within it; Flanging type sounding rod (7) is by cross bar (71), montant (72) and measuring sonde (73) are formed, connect as one vertical with montant (72) of cross bar (71) is " 7 " font, measuring sonde (73) is arranged on the bottom of montant (72), cross bar (71) is fixed on the slide block (8), distance between montant (72) and the rule (2) is 1～5 times of rule (2) width, base oneself upon end (23) when being in same plane when measuring sonde (73) bottom and rule (2), the upper sideline of cross bar (71) is aimed at the zero graduation line place of rule (2), all indicates size scale (22) in the both sides up and down at the zero graduation line place of rule (2).

2. according to laminate surface concave, convex defect detection tool in the described solar module of claim 1, it is characterized in that: measuring sonde (73) cross sectional shape is cone-shaped for the band circular arc; The sectional area that bases oneself upon end (23) be rule (2) sectional area 1/5.